Scaling hammer



Nov. 23, 1943. w. E. JOHNSON 2,335,150

SCALING HAMMER Filed Jul 3, 1941 INVENTOR.

William E. .luhnsun ATTORN EYS.

Patented Nov. 23, 1943 o FIcE SCALING HAMMER William E. Johnson, Beebe,Ark. Application July 3, 1941, Serial No.40L2

3 Claims.

The invention relates to improvements in scaling tools.

The primary object of this invention is a tool simulating a hammer whichhas a multiple part head so that the effective article engaging portionthereof may adjust itself to suit an irregular contour.

A further object of this invention is a provision of an improved toolpreferably adapted for use by those whose work it is to scale boilers,and embodying an improved scaling head formed of a plurality of parts sothat the efiective scaling surface thereof may adjust itself to anirregular contour, such as a welding bead.

Other objects and advantages of this invention will be apparent duringthe course of the following detailed description. In the accompanyingdrawing, forming a part of this specification and wherein similarreference characters designate corresponding parts throughout theseveral views.

Figure l is a perspective view of the improved tool.

Figure 2 is a fragmentary view, partly in section, showing the manner inwhich the head of the tool rests in its handle and supportingconstruction.

Figure 3 is a sectional View taken substantially on the line 3-3 ofFigure 2.

Figure 4 is a View showing the manner in which chisel edges of theimproved tool head may be employed in chipping scale from a weldingbead.

Figure 5 is a fragmentary section of the opposite end of the tool headshowing how it may be employed in close quarters for chipping scale froma weld.

In the drawing, wherein for the purpose of illustration is shown only apreferred embodiment of the invention, the letter A may generallydesignate the improved tool, which may include the improved scalechipping tool head B, mounted upon a preferably wooden handle by meansof a stirrup or strap D.

Referring to the improved tool head B, the same is preferablyconstructed of a plurality of flat tool steel sections IO, M and E2. Thenumber may Vary, but preferably the arrangement is that shown in thedrawing. Each of these fiat sided tool steel head portions, in case thetool is intended for use as a boller scaling tool, may conform to thefollowing dimensions: length 6 inches, width 1% inches, thickness of aninch. The invention is of course, not restricted to the dimensionsgiven. Each tool section it, i i and 12, at one end thereof, where theedge is normal to the axis of the length of the section, is

ness of the section. This edge 25 lies. in the cen ter line marking thelength axis of the, tool. head section.

The complementary tool head sections l0, H

and I2 are all of the same size and adaptedto; the position so thatthejchisel, edges 29 are parallel,

and the opposite point'edges 25 align when" thetool head is at rest; asshown in the drawing; The tool head sections If],

H and 12" are providedwith transversely disposed slots 27-, which areelongated along the center line of the length axis of the tool head, asshown in the drawing.

The handle C is preferably of wood, and flattened at its end 3%.

The strap or stirrup D is preferably of metal, including a bight portionMl; side portions 4| and the handle attaching ends 42 contiguous withthe portions 4!; adapted to lie at the opposite flat sides of the toolhandle flattened portion 30. A rivet or rivets it are employed to securethe strap ends 42 upon the handle; the fore end of the strap or stirrupD then projecting beyond the end of the handle and providing a socket inwhich the head B is disposed for reciprocation, and preferably againsttilting.

The manner of assemblage of the tool head B in the strap or stirrup iswell shown in the drawing. Preferably the corresponding side edges ofthe sections It, gagement against an end of the tool handle C and theopposite side edges of said head sections slide in abutment against theinside surface of the strap bight 49.

A bolt 5i! is provided upon the strap portions 4!; transverselyextending through the socket provided by said strap and extendingloosely through the elongated slots 2?. The bolt has a head whichengages one of the strap portions it and its other end is provided witha reduced screw threaded shank 52 to receive a nut 53. The shoulder atthe juncture of the bolt with the screw threaded shank 52 receives thenut 53 thereagainst to prevent binding of the tool head sections it, I!and iii in the strap should the nut be clamped too firmly.

The manner of using the tool will be apparent from the foregoing. It isextremely difiicult to remove scale from irregular contours, such aspresented in boilers sharp corners. faces where the Normally, forstraight line surquarters are not too close, I prell and i2 abut insliding enat welding beads and in and quarters fer to use the chiseledges 20 of the head section, t

as shown in Figure 4. However, in closer corners it is preferable to usethe point edges 25, as shown in Figure 5. The sections of the tool headare 'loose enough to permit their relative displacement, at the time ofblow of the hammer, so that the chipping edges thereof may conform tothe contour of the surface being chipped.

It is apparent from the foregoing that a scale chipping tool has beenprovided which will enable more eflicient and faster work to beaccomplished. I am also aware that the improved tool has other uses thanthat of chipping scale :from boilers.

Various changes in the shape, size and arrangement of parts may be madein the form of invention herein shown and described, without departingfrom the spirit of the invention and the scope of the claims.

I claim: V

1. 111, a ,tool for chipping scale and the like the combination of asupporting handle, a tool head comprising a plurality of fiat workengaging parts, and means mounting the said parts for relativetransversesliding along the axis of the tool head, each of said parts having onework engaging sharpened edge parallel with the plane of the part andanother sharpened edge transverse to the plane of the part.

2. A scaling hammer comprising a handle, a plurality of flat workengaging parts each of which is pointed at an end thereof to define asharp chisel edge which lies normal to the plane of the part, and meansrelatively slidably mounting said parts upon the handle so that thechisel edges of the parts may lie in the same line or in steppedrelation to each other, each of said parts at the opposite end having achisel edge which lies in the same plane as the plane of the part.

3. A scale chipping tool comprising an elongated handle, a stirrupsecured to an end of said handle, having a bight portion, side portionsextending therefrom toward said handle, and handle-attaching ends, withsaid bight portion spaced from the nearest end of said handle, wherebysaid handle and said bight and side portions provide a socket; a toolhead, comprising aplurality of elongated tool sections, each sectionbeing independently slidable in said socket, each provided at each ofits opposite end edges, normal to the longitudinal'axis of the section,with a chipping edge, the chipping edge of one end edge being normal tothe chipping edge of the opposite end edge, and the ends of saidsection, normal to said first-named ends thereof, slidable over theinner faces of said bight portion and said end of said handle, each toolsection having a transversely disposed slot, with the longitudinal axisthereof normal to the longitudinal axis of said handle ;a bolt carriedby said side portions and extending loosely thru all of said slots; andmeans rigidly securing said handie-attaching ends to said handle.

WILLIAM E. JOHNSON.

